The correct answer is A) building shelters.
The pioneers’ first priority was building shelters.
Life was difficult for pioneers who decided to leave their former lands and travel to the west in the time if US history called "the westward expansion." The Oregon Trail was also a difficult road to cross. Many people could complete it. Hunger was a major issue.
Pioneers had to build their shelters to endure climate conditions, clear the land for farming. However, the opportunity to have their own portion of land motivated many farjmers, former slaves, and immigrants.
1. James Madison and Alexander Hamilton and Sherman
2. the purpose was to amend the Article of Confederation
3. small states wanted number of representatives equal and bigger states wanted popular representatives
The printing press
Movable type printing was introduced to Europe by Johann Gutenberg in the mid-15th century. This technological advance made it possible for a reformer like Martin Luther to spread his ideas widely and rapidly. While overall literacy rates were low at that time, it was common for people to gather for reading of the latest Reformation materials. Hundreds of thousands of copies of tracts written by Luther were printed and distributed -- as well as similar spread of ideas by publishing done by other reformers.